ZFYVE28 is an 887 amino acid protein that contains one FYVE-type zinc finger, which mediates the interaction with PI3P (phosphatidylinositol 3-phosphate). ZFYVE28 functions as a negative regulator of EGFR (epidermal growth factor receptor) by promoting its degradation in endosomes when not monoubiquinated on Lys-87. In the absence of monoubiquination, ZFYVE28 localizes to the early endosome membrane, while it localizes to the cytosol when it is monoubiquinated. There are five isoforms of ZFYVE28 that are produced as a result of alternative splicing events.
Function:
Negative regulator of epidermal growth factor receptor (EGFR) signaling. Acts by promoting EGFR degradation in endosomes when not monoubiquitinated.
Subcellular Location:
Cytoplasm > cytosol. Early endosome membrane. Localizes to early endosome membrane in absence of Lys-87 monoubiquitination. Localizes to cytosol when monoubiquitinated.
Post-translational modifications:
Monoubiquitination at Lys-87 prevents binding to phosphatidylinositol 3-phosphate (PI3P) and localization to early endosome membranes.
Similarity:
Belongs to the lst-2 family.
Contains 1 FYVE-type zinc finger.
SWISS:
Q9HCC9
Gene ID:
57732
Database links:
Entrez Gene: 57732 Human
Entrez Gene: 231125 Mouse
Omim: 614176 Human
SwissProt: Q9HCC9 Human
SwissProt: Q6ZPK7 Mouse
Unigene: 292056 Human
Unigene: 113388 Mouse
|
|
